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J. E. McINTOSH.

' GENTRIPUGAL GOVERNOR. No. 346,302. Patented July 27, 1886.

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UNITED STATES PATENT OFFICE.

JOHN E. MCINTOSH, OF OAYUGA, NEW YORK.

CENTRIFUGAL GOVERNOR.

BFLCEFICATION forming part of Letters Patent No. 346,302, dated July 27, 1886.

Application filed April 26, 1886.

To all whom it may concern:

Be it known that I, JOHN E. McIN'rosn, of Cayuga, in the county of Cayuga, in the State of New York, have invented new and useful Improvements in Centrifugal Governors, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention has reference to the class of centrifugal governors in which the eccentric is arranged movable diametrically or laterally on the driving-shaft of the engine and carried toward and from coneentricity by a movable support, which is connected with the flywheel, and is actuated by centrifugal force received from-the fly-wheel while in motion.

The invention consists in a materially-simplified construction and combination of the constituent parts of the governor, as hereinafter described, and specifically set forth in the claims.

' The invention is fully illustrated in the annerzed drawings, wherein Figure 1 is a side view of my improved governor. Fig. 2 is a transverse section on line at as, Fig. 1. Figs. 3 and 4 are detached face and side views of the eccentric; and Figs. 5 and 6 are detached face views of the arm which guides the eccentric, and of the box by which the eccentric slides in the guide of the said arm.

Similar letters of reference indicate corre sponding parts.

A represents the driving-shaft of an engine, andBthe fly-wheel or drivin g-pulley, mounted on said shaft in the usual and well-known manner.

G is an arm, which is pivoted on the side of the wheel B, and has its free end extended toward the shaft, and provided with a weighted head, 0, which is provided with a slot, 0, by which the free end of the arm 0 strides the shaft A. In the slot 0 slides a box, I, and in this box is carried the eccentric E, which is attached to the free end of an arm, D, pivoted on the side of the wheel 13 in a position at right angles to the arm 0. The guide-slot 0 is arranged in a line at an angle in relation to the arms 0 D, and consequently said guideslot crowds the eccentric E toward a concentric position with the shaft when the free end of the arm 0 is swung from the center of the Serial No. 200,170. (No model.)

wheel, which movement is effected by the centrifugal force exerted on the weighted arm by the wheel when in motion. The free end of the arm 0 is held normally at the center of the wheel, and thus the eccentric is normally in its extreme eccentric position by the action of a spring, S, which is at one end connected to the wheel, and at the opposite end connected with the head 0 or free end of the arm 0 by a link, L. A lug, a, is rigidly attached to the wheel and provided with a screw threaded eye, through which is extended a set-screw, b, and the end of the latter bears on the spring S. By turning this screw it is made to press with greateror less force on the spring, and thus the tension of the latter can be adjusted to exert the desired resistance to the movement of the arm 0 under the influence of the centrifugal force.

T denotes a lug or pin, which projects from the side of the wheel in such a position as to arrest the movement of the arm 0 in case of accidental uncoupling of the spring S from Said arm.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In combination with the rotary shaft and wheel mounted thereon, two oscillatory arms on the wheel, and having their free ends about the shaft, :1. guide-head on the free end of one of saidarms, and an eccentric on the other arm and supported inovably in the aforesaid guide-head, as set forth.

2. In combination with the rotary shaft and wheel mounted thereon, two arms pivoted at right angles to each other on the wheel, and having their free ends about the shaft, a head of the free end of one of said arms, provided with a guide-slot arranged in a line at an angle in relation to the two arms, a spring forcing the free ends of the said arms toward the center of the wheel, a box sliding in said slot, and an eccentric on the free end of the other pivoted arm and carried in said box, substantially as described and shown.

3. In combination with the shaft A and wheel 13, the arm 0, pivoted on the wheel, and having its free end provided with the slotted head 0, astridc the shaft, the box I, sliding in said slotted head, the arm D, pivoted on the 2 i s4e,302

wheel at right angles to the arm 0, the eccenof two attesting witnesses, at Syracuse, in the trio E on the free end of the arm D and carcounty of Onondaga, in the State of New York, 10 ried in the box I, the spring S, attached to the this 12th day of April, 1886.

wheel and to the free end of the arm 0, and w T 5 the screw 0, for adjusting the tension of said JOHN MCILTOSH' spring, substantially as described and shown. Vitnesses:

In testimony whereof I have hereunto signed FREDERICK H. GIBBs,

my name and affixed myseal, in the presence 1 E. O. CANNON. 

